Best California Java Developers

6 Companies - Rankings updated: September 03, 2026

All agencies on DesignRush undergo evaluation based on professional expertise and verified client reviews. Please note that certain placements are paid partnerships.

United States × California × Java Development × Energy & Mining × $10,000 - $25,000 × Clear Filters
  • HIGH QUALITY SOFTWARE COMPANY IN VIETNAM

    With over 10 years of expertise, AgileTech Vietnam stands at the forefront of delivering innovative technology solutions across a wide range of industries. Our team of 300+ skilled developers has completed more than 1,000 successful projects, ranging from dynamic startups to large-scale enterprises...

    Top Services:

    • Web Development
    • WordPress Website Design
    • UI/UX Design
    • eCommerce Development
    • Web Design
    • Show more
    Location
    Irvine, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    50 Projects Listed

    AgileTech Services

    • Web Development
    • WordPress Website Design
    • UI/UX Design
    • eCommerce Development
    • Web Design
    • Software Development
    • Mobile App Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Clingme
    • Luxstay
    • Lian
    • Ferosh
    • Alosong
    • Stardary
    • Tizo
    • Jupviec
    Data sourced from the agency's DesignRush profile

    AgileTech Reviews & Testimonials

    • Noah Petraitis
      Noah Petraitis Project Manager at National Technologies (NTI)
      5.0

      Mobile App Development Review from Noah Petraitis

      AgileTech excelled in supporting our project from initial mock-ups through to the final delivery on the App Store, incorporating data analytics that we could easily share with our customers. The scope of work included mock-up creation, UI/UX design, interactive prototyping, app development, rigorous testing, and setting up a secure production environment on AWS, culminating in the apps release on both iOS and Android platforms.

    • Selva Jayaraman
      Selva Jayaraman Owner at Business Integra Inc
      5.0

      Software Development Review from Selva Jayaraman

      Working with AgileTech has been an amazing experience, especially when it comes to creating a personalized e-learning program for our IT services business. We were pleasantly surprised by how adaptable and scalable the platform developed by the AgileTech Team was. Their proficiency with user-friendly course administration and community participation technologies enabled us to provide a thorough instructional resource catered to our customers' particular requirements. The platform has greatly improved our operational efficiency, and we are amazed by its capacity to manage heavy traffic with ease and offer comprehensive reporting and analytics. The platform remained successful and user-friendly because of the team's dedication to continuous support and their quick response to criticism. For any organization looking to create innovative and reliable digital solutions, we wholeheartedly recommend AgileTech as a partner.

    • Preci Capiral
      Preci Capiral Owner at TechnoSphere, Inc.
      5.0

      Software Development Review from Preci Capiral

      AgileTech provided a superb Learning Management System (LMS) that creatively and precisely addressed the intricate needs of our organization. Within a scalable, completely customizable platform, the LMS made it possible to create comprehensive courses, administer student tests, engage the community, and obtain real-time data insights. AgileTech's modular and agile approach made sure that every component, from the user-friendly course builder to the sophisticated analytics and communication tools, was customized to meet our demands despite the difficulties of developing such a feature-rich system. In order to guarantee perfect scalability and zero downtime, even with high user concurrency, AgileTech used a potent tech stack that included PHP, React, and AWS. Their post-launch assistance, which included frequent training sessions and upgrades, gave our staff the means to fully use the LMS's potential. This project was a testament to AgileTech's technical skill, rapid deployment, and dedication, making them an outstanding choice for educational technology development.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Transforming Enterprises with AI Applications

    ThirdEye Data Transforms Enterprises with Data & AI Solutions & Services. ThirdEye Data leverages Artificial Intelligence & Data technologies to build AI applications for enterprises worldwide...

    Top Services:

    • AI Development
    • Big Data Analytics
    • Software Development
    • IT Services
    • Staff Augmentation
    • Show more
    Location
    San Jose, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    23 Projects Listed

    ThirdEye Data Services

    • AI Development
    • Big Data Analytics
    • Software Development
    • IT Services
    • Staff Augmentation
    • DevOps Consulting
    • Cloud Consulting
    • Mobile App Development
    • IoT
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Microsoft Corp
    • Walmart
    • AWS
    • SCE
    • XPERI
    • Texisle
    • Glastrosch
    • British Petroleum
    • CRC
    • Google
    Data sourced from the agency's DesignRush profile

    ThirdEye Data Reviews & Testimonials

    • Matt Singer
      Matt Singer CEO at Ecotrak
      5.0

      Big Data Analytics Review from Matt Singer

      ThirdEye helped analyzing data and recommending architecture for enhanced analytics. They understood our business needs really well and went above and beyond to deliver what we were looking for.

    • Kumar Mankala
      Kumar Mankala Former Advisor of the AI/ML Program and Products at SCE
      5.0

      Software Development Review from Kumar Mankala

      ThirdEye developed CV ML models to automate image quality assessment for Field Asset Inspection (part of Wildfire Mitigation Program). The team delivered the models in time, was able to adapt to changing requirements.

    • Erhan Erdem
      Erhan Erdem Review from Google
      1.0

      Erhan Erdem's Review Sourced from Google

      I did a voice study for them almost two months ago, still waiting for my payment. I contacted them multiple times and they don't even respond. What a joke.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • AI-First Engineering | Agentic AI | Product Engineering | Enterprise Software | Digital Transformati

    Appventurez is a global AI and digital transformation company specializing in custom software, mobile app, web, and enterprise application development. We build scalable technology solutions that help businesses innovate, automate, and grow...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • VR/AR
    • eCommerce Development
    • Show more
    Location
    San Jose, California
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    8 Projects Listed

    Appventurez Mobitech Services

    • Mobile App Development
    • Web Development
    • Software Development
    • VR/AR
    • eCommerce Development
    • IoT
    • AI Development
    • CRM Consulting
    • Staff Augmentation
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • HOLCIM
    • Ever Friends AI
    • ENUNCIA.AI
    • Digishayak
    • Tattoo Planet
    • Electronica Finance Limited (EFL)
    • Ezipay
    • Melto
    • Zoës Kitchen
    • Adviceme
    Data sourced from the agency's DesignRush profile

    Appventurez Mobitech Reviews & Testimonials

    • Martin Larsen
      Martin Larsen Founder at Balloner i byen
      4.8

      WordPress Website Design Review from Martin Larsen

      Appventurez Mobitech is developing a customizable dashboard that allows users to track and manage shipments. They create backend panels and implement UI / UX designs provided by internal stakeholders.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Rethink Everything

    We use technology to create undeniably brilliant work for companies with taste. Brands like Adidas, Quidax, NLNG, Propel have trusted us to bring their visions to life. Let's do the same for you...

    Top Services:

    • Product Design
    • Web Development
    • Web Design
    • Branding
    • Design Services
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $100/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed

    Check Services

    • Product Design
    • Web Development
    • Web Design
    • Branding
    • Design Services
    • Social Media Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Adidas
    • Propel
    • NNPCL
    • Oui Capital
    • Quidax
    Data sourced from the agency's DesignRush profile

    Check Reviews & Testimonials

    • Oludamilare Adesola
      Oludamilare Adesola Review from Google
      2.0

      Oludamilare Adesola's Review Sourced from Google

      Most of the glowing reviews here don’t seem to be from real clients. My experience was the opposite. This company is grossly incompetent. They charged high fees but delivered sub-par work, riddled with delays and headaches that continued even after the contract ended. They were hired to design a web app, but the end product was so poor that I had to bring in engineers to fix the mess they left behind. There were issues at every stage of the project, from design to deployment. What stings the most is that I was the one who recommended them to my team because a friend knew the owner. I deeply regret that recommendation. The only reason I’m giving two stars instead of one is that the team, Lanre especially, were at least cooperative — but cooperation is pointless (and frankly annoying) when the work is fundamentally flawed. My advice: stick to using them only for basic website creation, and hire a skilled freelancer for more advanced projects. My advice to Chisom: It’s unfortunate that our experience turned out so poorly, because your company is a great concept with a lot of potential. Protect the brand you’ve worked so hard to build — the sweat and tears show — by investing in skilled engineers and raising delivery standards. Otherwise, you risk frustrated clients, avoidable disputes, and damage to the reputation you’ve worked to establish.

    • Adedoyin Akande
      Adedoyin Akande Review from Google
      5.0

      Adedoyin Akande's Review Sourced from Google

      A design company that constantly evolve design thinking, creating designs and software solutions with profound and enduring beauty in simplicity in clarity in efficiency, derived from so much more than just the absence of clutter and ornamentation but about bringing order and harmony to complexity.

    • Rosemary Omeje
      Rosemary Omeje Review from Google
      5.0

      Rosemary Omeje's Review Sourced from Google

      Truly delivering unique design services. They have got a very good creative team and you are sure to get something that will resonate with what you want.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Building the new era of digital growth

    Nova Era is a digital solutions agency built to merge creativity with innovation, offering web and app design, development, video production, automation, and customized AI tools. The focus is always on building smarter systems that help businesses work seamlessly and communicate with impact. What defines the...

    Top Services:

    • Web Design
    • Web Development
    • eCommerce Development
    • UI/UX Design
    • Mobile App Development
    • Show more
    Location
    San Francisco, California
    Number of Employees
    Under 49
    Average Hourly Rate
    $149/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    2 Projects Listed

    Nova Era Agency Services

    • Web Design
    • Web Development
    • eCommerce Development
    • UI/UX Design
    • Mobile App Development
    • AI Development
    • SEO
    • Video Production
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Henne Creative
    • SKA Law
    • Commure
    • Marvelous
    • Vapi
    Data sourced from the agency's DesignRush profile

    Nova Era Agency Reviews & Testimonials

    • Nazim Eryilmaz
      Nazim Eryilmaz Review from Google
      5.0

      Nazim Eryilmaz's Review Sourced from Google

      I worked with Nova Era on a UI/UX redesign for my startup and they were great to work with. If you’re local to the San Francisco area, Nova Era is an excellent choice and even if you’re not, it’s still seamless. I’m based in NYC and had zero issues with time differences or communication. Highly recommend the team.

    • Anıl Ergez
      Anıl Ergez Review from Google
      5.0

      Anıl Ergez's Review Sourced from Google

      I worked with Nova Era Agency, a San Francisco- based web design agency, for a full website redesign and couldn’t be happier with the results. From the beginning, their team was professional, responsive, and clearly experienced in building modern, high-performing websites. They took the time to understand my business goals and delivered a clean, visually polished site that’s fast, user-friendly, and optimized for conversions. What really stood out was their attention to detail and clear communication throughout the entire process  from strategy and UX to design and launch. It felt great working with a local SF web design team that truly understands both branding and performance. If you’re looking for a reliable web design agency in San Francisco, I highly recommend Nova Era Agency.

    • Cevher Ersoy
      Cevher Ersoy Review from Google
      5.0

      Cevher Ersoy's Review Sourced from Google

      i worked with Nova Era Agency, a San Francisco web design and SEO agency, to build a website for my online book business, and the experience has been outstanding. The site they designed looks great, is easy to use, and actually helps convert visitors into customers instead of just sitting there looking nice. I’m also using their ongoing SEO services, and the impact on my business has honestly been amazing. Over time, I’ve seen more organic traffic, better visibility on Google, and a noticeable increase in sales. It’s clear they understand SEO for online businesses, not just basic optimization. What I appreciate most is that they’re consistent and proactive. They don’t disappear after launch they keep improving the site and SEO month after month. If you’re looking for a reliable web design and SEO agency in San Francisco, especially for an e-commerce or online business, I highly recommend Nova Era Agency.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Transforms Digital Idea Into Reality

    Appther is a software and mobile app development company creating intelligent, scalable, and user-friendly digital solutions powered by innovation and AI...

    Top Services:

    • Mobile App Development
    • Software Development
    • AI Development
    • Design Services
    • Product Design
    • Show more
    Location
    Signal Hill, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $22/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    1 Project Listed

    Appther Services

    • Mobile App Development
    • Software Development
    • AI Development
    • Design Services
    • Product Design
    • Web Design
    • Web Development
    • Staff Augmentation
    • IT Services
    • DevOps Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Joyscore
    • Mybob Team
    • Wave
    • Locasto
    Data sourced from the agency's DesignRush profile

    Appther Reviews & Testimonials

    • Sharma Pk
      Sharma Pk Review from Google
      4.0

      Sharma Pk's Review Sourced from Google

      After searching a lot for a good mobile app development organization, we finally landed on Appther. They provided us with all the technical solutions and resources for our organization with minimal hassle. The products delivered by Appther feature best-in-class performance and an attractive design. The mobile application was smooth and bug-free and allowed us to connect with a big pool of clients. The website was also delivered with full precision and on time. The performance and products delivered by Appther are admirable, they showed the finest class of professionalism and expertise throughout the entire process. Pushpender Kumar General Manager IT A.B Sugars Ltd(Wave Group)

    • Akshay Choudhary
      Akshay Choudhary Review from Google
      5.0

      Akshay Choudhary's Review Sourced from Google

      One of the fastest-growing app development companies in Noida. The work environment is very good. They also initiate some fun activities which makes working with the company more fun and easy.

    • Akanksha Pathak
      Akanksha Pathak Review from Google
      5.0

      Akanksha Pathak's Review Sourced from Google

      It is a company that will help you boost your career. I have been working with Appther for quite a while will be going to be a part of this family for a long time. The work culture is friendly and superiors are nothing supportive. Proud to be a part of the Appther family!!

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

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